While this particular transaction hasn't necessarily been the most lucrative for NxtPhase's prior investors (judging from the press releases listed on their website, the company raised more than $40M since 1999), it's worth noting that according to the recent "exit returns" study released by the Cleantech Venture Network (as previously described here -- scroll down a bit to find it) the average return to cleantech venture investors found via M&A exits was about 4.1x over the past ten years.
This is an important and encouraging finding, because in clean technology markets it's probably relatively more likely for venture investments to exit via trade sale than other paths (e.g., IPO). The reasons are largely positive:
- Large acquisitive players with stated strategic goals to pursue some of these markets (for example, GE with clean water and clean energy technologies),
- The value of a bundled technologies sale to large, key customers such as utilities,
- The fact that many of these technologies are taking over for older incumbent technologies rather than building entirely new markets,
- ...to name a few